Seattle Disc Mastering and Black Belt Mastering have joined forces!

Seattle Disc Mastering and Black Belt Mastering have joined forces. Together, Mark Guenther and Levi Seitz provide quality audio mastering using analogue and digital gear coupled with audio mastering software. Our most important tool is our ears; critically listening combined with years of experience in perfecting audio will ensure your songs receive the proper treatment. For more information about Black Belt Mastering or to contact Levi, go to

Happy Groundhog Day!

Punxsutawney Phil saw his shadow today, signaling six more weeks of winter. I guess that's OK since I probably won't see much of the outside world for a while - things have been busier than usual the past few weeks! Some of the latest projects in the works:

The Wellstone Conspiracy and The Hal Galper Trio for Origin Records, Katie Bourne, Kris Orlowski, an EP for The Circus In Your Town, Until They Are Not, The Wind Up, Follow the Lamb, The Heels, and Circus Contraption.

Seattle Disc Mastering

Seattle Disc Mastering's work can be heard on some of the
Pacific Northwest's finest recordings as well as national and
international artists of varied musical styles.

Register to upload files for mastering

We are in the process of setting up online mastering.
You will soon be able to upload your tracks via this website.
Mastered tracks may then be downloaded or sent to
you on disc.

Recent projects...

Daz Dillinger
Ledward Kaapana "Force of Nature" (2008 Grammy nominee) :
Smoosh (check them out, they’re getting quite a bit of press-The Today Show, CNN, NPR, etc)
Jon Auer
The Wailers
Guns and Rossetti;
Gerald Wilson “New York New Sound” (Grammy nominee)

Also, tons of other jazz releases on Origin Records.

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